The 17-year-old man was identified by his initials, J.C.M. He was arrested in the Cole Bay area shortly before 4 p.m., according to a statement from the St. Maarten Public Prosecutor's office.

It said further arrests could not be ruled out.

A 28-year-old suspect is already in custody in connection with the deaths of Michael and Thelma King. Their bodies were discovered last month at their oceanfront residence in Cupecoy, a beach town on the southwest tip of the Dutch island nation.

That suspect, known as M.K.J., denies any involvement in the killings, his attorney has said.